zerogage - Thread Pitch Arbors Thread Pitch Arbors
 

Thread Concentricity, Squareness and Location Gages & Arbors
Design Guide
Specify By Type of Arbor

Thread Dia. A B (MAX.)
5/16 & 3/8 .37 .030
7/16 .37 .025
1/2 .40 .040
9/16 .46 .055
5/8 .52 .070
11/16 .58 .085
Thread Dia. A B (Max.)
3/4 .62 .095
13/16 .70 .095
7/8 .73 .095
15/16 to 1 - 7/16 .75 Not Req.
1 - 1/2 to 2 1.00 Not Req.

Designers Should Practice Good Judgement to Keep Proportions in Mind